Hello, my 9 month old was sleeping all night in his cot a few weeks ago, then suddenly he wakes up between 2-3 am every single night screaming and will not go back until he's in bed with me. He's had 2 teeth come through but I don't think it's that. I have tried rubbing teething powder on his gums but he still screams. Does anyone know what this could be ! Is it just habit now? I really want to get him back to sleeping through xx